Smith is far more direct, focused, and developed than most of the popular authors writing today. It was written in the 80s, but since the arguments are directed at theism period, it’s basically timeless.

I just finished “God: The Failed Hypothesis” by physicist Victor Stenger. I appreciated the book as it took on the latest theistic arguments about how god is evidenced in relativity and subatomic physics. Being an engineer, I got the distinct sense that the religious apologists purposely took refuge in such a foreign and abstract field of physics simply because few could speak intelligently on the matter. Even those who speak intelligently on the matter are understood by very few. Particle physics . . . the perfect obfuscation.

As you can imagine with such subject matter, the bulk of book might be inaccessible to many readers. Still, he compellingly shows how the apologetics that use physics is just as watery and ill conceived as the conventional apologetics based on philosopy. It is a quick read and his final chapter “Living in a Godless Universe” (which is far more accessible to the populace) is quite excellent.